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1.
J Small Anim Pract ; 64(3): 149-160, 2023 03.
Article in English | MEDLINE | ID: mdl-36250216

ABSTRACT

OBJECTIVES: To evaluate the feasibility and the complications following single or double random mucosal rotating (transposition or interpolation) flaps for the closure of rostral to mid maxillary defects in dogs. MATERIALS AND METHODS: Medical records of dogs treated with single or double random mucosal rotating flaps after maxillectomy for oral lesions or traumatic loss of tissue, were evaluated. Clinical findings, surgery performed, outcome and postoperative complications (major and minor) were extracted. RESULTS: Twenty-six client-owned dogs were retrospectively included. Dogs underwent maxillectomy for canine acanthomatous ameloblastomas (9), oral squamous cell carcinomas (4), peripheral odontogenic fibromas (4), oral melanomas (3), oral fibrosarcomas (2), dentigerous cysts (2) and oral osteosarcoma (1) and trauma resulting in an oronasal fistula (1). Twenty-three dogs underwent a single transposition or interpolation flap and three dogs were treated with a double transposition flap. Postoperative complications, including dehiscence or flap necrosis, occurred in six dogs. CLINICAL SIGNIFICANCE: Random mucosal rotating (transposition or interpolation) flaps are versatile when used to close rostral maxillary defects in dogs. Postoperative complications appear to be more likely when these flaps are used to close mid maxillary defects.


Subject(s)
Dog Diseases , Melanoma , Mouth Neoplasms , Animals , Dogs , Dog Diseases/surgery , Melanoma/veterinary , Mouth Neoplasms/veterinary , Postoperative Complications/veterinary , Retrospective Studies , Surgical Flaps/veterinary
2.
BMC Vet Res ; 18(1): 200, 2022 May 27.
Article in English | MEDLINE | ID: mdl-35624498

ABSTRACT

BACKGROUND: There is scant clinical research on neuraxial analgesia in dogs undergoing major surgery. With this study we compared the perioperative analgesic effects of thoracic epidural anaesthesia (TEA) and intrathecal morphine (ITM) in dogs scheduled for thoracic or cranial abdominal surgery. The dogs received methadone and dexmedetomidine, were anaesthetized with propofol maintained with sevoflurane, and randomly assigned to receive either TEA (ropivacaine 0.5% at 0.2 mg/kg and morphine 0.1 mg/kg administered at T12-T13) or ITM (morphine 30 µg/kg administered at L6-L7). Intraoperative rescue analgesia (iRA) was fentanyl 1 µg/kg administered if heart rate or mean arterial pressure increased by 30% above the pre-stimulation level. Glasgow Pain Composite Scale score (GPCS) dictated the use of postoperative rescue analgesia (pRA) with methadone 0.2 mg/kg. RESULTS: There was a statistically significant difference in iRA, median time to first fentanyl bolus, median fentanyl dose after surgical opening, and median GPCS score at 30 minutes (min), 1 ,2, 4, 6, and 8 hours (h) between the two groups (p<0.001; p<0.001; p<0.001; p<0.01; p<0.01; p<0.001; p<0.01; p=0.01; p=0.01, respectively). Fewer TEA than ITM group dogs required iRA during surgical opening and pRA: 5% (1/18) and 2/18 (11%), respectively, in the TEA and 83% (16/18) and 10/18 (55%), respectively, in the ITM group. Side effects were urinary retention in 3/18 (16%) TEA group dogs and 2/18 (11%) ITM group dogs and prolonged sedation in 2/18 (11%) in ITM group dogs. TEA and ITM were effective in managing perioperative pain in dogs undergoing thoracic or cranial abdominal surgery.


Subject(s)
Anesthesia, Epidural , Dog Diseases , Analgesics, Opioid , Anesthesia, Epidural/veterinary , Animals , Dog Diseases/drug therapy , Dog Diseases/surgery , Dogs , Fentanyl/therapeutic use , Methadone/therapeutic use , Morphine , Pain, Postoperative/drug therapy , Pain, Postoperative/veterinary
3.
Vet Comp Oncol ; 15(3): 996-1013, 2017 Sep.
Article in English | MEDLINE | ID: mdl-27146852

ABSTRACT

Reported post-surgery 1-year survival rate for oral canine malignant melanoma (cMM) is around 30%; novel treatments are needed as the role of adjuvant chemotherapy is unclear. This prospective study regards adjuvant electrovaccination with human chondroitin sulfate proteoglycan-4 (hCSPG4)-encoded plasmid in 23 dogs with resected II/III-staged CSPG4-positive oral cMM compared with 19 dogs with resected only II/III-staged CSPG4-positive oral cMM. Vaccination resulted in 6-, 12-, 18- and 24-month survival rate of 95.6, 73.9, 47.8 and 30.4%, respectively [median survival time (MST) 684 days, range 78-1694, 8 of 23 dogs alive] and 6-, 12-, 18- and 24-month disease-free interval (DFI) rate of 82.6, 47.8, 26.1 and 17.4%, respectively (DFI 477 days, range 50-1694). Non-vaccinated dogs showed 6-, 12-, 18- and 24-month survival rate of 63.2, 26.3, 15.8 and 5.3%, respectively (MST 200 days, range 75-1507, 1 of 19 dogs alive) and 6-, 12-, 18- and 24-month DFI rate of 52.6, 26.3, 10.5 and 5.3%, respectively (DFI 180 days, range 38-1250). Overall survival and DFI of vaccinated dogs was longer in those <20 kg. In vaccinated and non-vaccinated dogs local recurrence rate was 34.8 and 42%, respectively while lung metastatic rate was 39 and 79%, respectively.


Subject(s)
Chondroitin Sulfate Proteoglycans/immunology , Dog Diseases/therapy , Melanoma/veterinary , Mouth Neoplasms/veterinary , Adjuvants, Immunologic/therapeutic use , Animals , Cancer Vaccines/therapeutic use , Combined Modality Therapy , Dog Diseases/mortality , Dogs , Female , Male , Melanoma/mortality , Melanoma/therapy , Mouth Neoplasms/mortality , Mouth Neoplasms/therapy
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